Answer:
Enzymes help speed up chemical reactions in the human body. They bind to molecules and alter them in specific ways. They are essential for respiration, digesting food, muscle and nerve function, among thousands of other roles.
Explanation:
first, third, fourth, second
Answer: ground water
point c
Darker patches in the skin. Not mater the size, the small patch could be hiding cancer with the possibility of tumors under the patch of skin.
